<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8" import="java.util.*,com.model.Circle"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body bgcolor='pink'>
		<%request.setCharacterEncoding("utf-8"); %>
		<jsp:useBean id="o" class="com.model.Circle"></jsp:useBean>
		<jsp:setProperty property="r" name="o" param="redius"/>
		圆的半径为:<jsp:getProperty property="r" name="o"/><br>
		圆的周长为:<%=o.length() %><br>
		圆的面积为:<%=o.area() %>
</body>
</html>
